Personalized Whatif I Love to Swim with Whatif Monster Women's Plus Size T-Shirt. Take a dip with the Whatif Monster! Whatif I Love to Swim with Whatif Monster Women's Plus Size T-Shirt - White, from the hit children's book, "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)